CVE-2025-13124 is an authorization bypass vulnerability categorized under CWE-639 (Authorization Bypass Through User-Controlled Key) affecting the ApplyLogic product by Netiket Information Technologies Ltd. Co. The flaw arises because ApplyLogic improperly trusts user-controlled keys or identifiers, which can be manipulated by an attacker to bypass authorization checks. This allows an attacker with limited privileges (PR:L) to escalate their access rights without requiring user interaction (UI:N). The vulnerability is exploitable remotely over the network (AV:N) with low attack complexity (AC:L), meaning it does not require sophisticated conditions or extensive knowledge to exploit. The impact primarily affects the integrity of the system, allowing unauthorized modification or manipulation of data or operations, while confidentiality impact is limited and availability impact is low. The vulnerability affects all versions of ApplyLogic up to 01.12.2025. No patches or known exploits are currently available, but the vulnerability has been publicly disclosed and assigned a CVSS v3.1 score of 7.6, indicating a high severity threat. The issue was reserved in November 2025 and published in December 2025 by TR-CERT. Organizations using ApplyLogic should be aware of the risk of attackers exploiting trusted identifiers to gain unauthorized access or privileges within their systems.

For European organizations, the primary impact of CVE-2025-13124 is the potential for unauthorized privilege escalation within systems running ApplyLogic, which could lead to unauthorized data modification, manipulation of business logic, or unauthorized actions that compromise system integrity. While confidentiality impact is limited, the integrity breach can result in significant operational disruptions, data corruption, or fraudulent activities. Availability impact is low, so denial-of-service is unlikely. Organizations in sectors such as finance, healthcare, government, and critical infrastructure that rely on ApplyLogic for workflow or business process automation may face increased risk of targeted attacks aiming to exploit this vulnerability. The ability to exploit remotely without user interaction increases the threat surface, especially for externally facing services or poorly segmented internal networks. The lack of known exploits in the wild currently reduces immediate risk but does not eliminate the urgency for mitigation, as attackers may develop exploits following public disclosure. Failure to address this vulnerability could lead to regulatory compliance issues under GDPR if unauthorized data manipulation or access occurs.

1. Monitor for vendor updates and apply patches immediately once released to address CVE-2025-13124. 2. Until patches are available, implement strict network segmentation to limit access to ApplyLogic instances, especially from untrusted networks. 3. Enforce the principle of least privilege for all users and service accounts interacting with ApplyLogic to reduce the impact of potential exploitation. 4. Deploy application-layer firewalls or intrusion detection/prevention systems (IDS/IPS) with custom rules to detect anomalous requests involving user-controlled keys or identifiers. 5. Conduct thorough code reviews and security assessments of any custom integrations or extensions of ApplyLogic to identify and remediate similar authorization weaknesses. 6. Enable detailed logging and monitoring of authorization failures and unusual access patterns to facilitate early detection of exploitation attempts. 7. Educate administrators and security teams about the nature of CWE-639 vulnerabilities to improve incident response readiness. 8. Consider implementing multi-factor authentication and additional verification steps for sensitive operations within ApplyLogic workflows to mitigate unauthorized actions.